Théo Marclay (born 2001), known professionally as Nuit Incolore, is a Swiss musician and composer, most known for his song Dépassé, which went Platinum in France. He was named French Speaking Revelati
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cdb444919b547c6a92c982be50713101fa57637031eb970ae1456973060bcf. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/de83069a-d9c0-4e79-869d-9f8ba5ab5c31.json and https://artists.proofprofile.net/proofs/artist/de83069a-d9c0-4e79-869d-9f8ba5ab5c31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9c5bb033a2eb071c717239dfd0b8b5653e01971a66886b0b57765e398432a8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72093972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72becf5000c7262fa8022d45e9495ef1285fb53d900201110d6abbfb9f56c4e7. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72093973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0bd25e14603f12dc82e97071fd1c9b7d45cb33bc9714be2fff3c28ebef2de7. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA72093975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee234a7ddc6d5c2e6eba65d2ddb37eeb7b236e4ac4544a1a9d2dbc1d393b9384. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92070866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d43f7d9dfeecde8a264d164d797b3b4f1e5bd651e63adbbaea351928ad6237c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92070307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe457d9c0cfcc03d7d30428dced338377391936ac1b1807607c5c6ec833a9610e. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2064305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb01a6b30604f68daaacf406ee54d59e788f4c0303aac4fac212717cac793e54. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2024415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad073e39154252bad2aa8a4d339d7e9aa923012408bfbc1895a5d91d46f70ab. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2024417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074b0580485b240954640932972dec4c22be059f573baaaa2c60cc58906f8055. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2024418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e645bc835385ddec218855636372f72578c206a67a38560b88ce592cf844ca. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWY2027446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663c68e7aa9f9a58420d6db1d9d4a88e90e91be0d26cea1770a91422bc2c3a5c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2053440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6069587125deb4f5ee1f4528c174afc98b61887631d8cac077b367b574c45b80. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2053439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a28af35de4e80cca1dea3083ac0938beea8d545bf25b2eba5139de93e20ff. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2053441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8cdb320829385db15a31887258ed11551ee56d9ae9fa46735d7beb6484252d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ32192047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1c175b8e943d62fb80a2a175eba8c81d991cc20a763f104cf582f0230da38b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72157568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035f917f413bcf50d10342d938eccb5c634bf3ded6eea6c0e85fecaeae324b5f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN62111580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba47c72882a9561439a447a4d668c2bbcd3e7be3a7b29675d70d6d4fc762b1a6. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6F32404890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b9658e5624ed4dacc4fb77a5f8460dfd482f3774e959c27051aafa86c3ed7. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6F32404920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba47c72882a9561439a447a4d668c2bbcd3e7be3a7b29675d70d6d4fc762b1a6. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6F32404890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517c01b5ba74098db73b27872c277fa12fdd2aeeecaaa8400e81c1ae4aeeb18f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6F32301820.